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Упит dcterms_subject_txt:Sustainability and the Environment

2812 items

  • Analysis of the exhaust emissions inventory from auxiliary mining machines

    Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)
    Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...
    emissions, mining, auxiliary machines

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... specific research and testing program that would involve appropriate laboratory testing of the geomechanical parameters. These were to represent the influence of hydrostatic water pressure on the working environment—coal. Nevertheless, geomechanical laboratory research tests were initially modified to ...
    ... specific research and testing program that would involve appropriate laboratory testing of the geomechanical parameters. These were to represent the influence of hydrostatic water pressure on the working environment—coal. Nevertheless, geomechanical laboratory research tests were initially modified to ...
    ... suitable hydraulic press, used to apply the vertical force to the wedge. The vertical force constantly increases until the sample splits. During the tests and determining the value of the force which led to the sample splitting, the size of the wedge penetration into the specimen is recorded [24]. Cutting ...

  • Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2

    Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)
    Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...
    Metals and Alloys, Biochemistry, Biomaterials, Biophysics, Chemistry (miscellaneous)
    ... measurements. The fluorescence of PLA2 when excited at 280 nm is mainly due to the presence of a single tryptophan residue (Trp3) which is located on the surface of the enzyme molecule and exposed to the environment.39 All fluorescent spectra of PLA2 solution were recorded in the presence of increasing ...
    ... intensity and the fact that ruthenium exhibits a broad distribution of isotopes. The original [RuCl2(bipy)2]Cl is apparently converted in the aqueous environment into two different species, one losing all chloride anions, and another replacing them with one more bipy ligand. Thus, the two new mass ...
    ... labeling of the substrate is required.35 Briefly, this approach for the determination of the PLA2 activity is based on the quantification of the product (lysolipid) in the MALDI-TOF mass spectra depending on the time of incubation with the enzyme.31,36,37 The data obtained showed that all PL and LPL classes ...

  • State and perspective of individual household heating in Serbia: A survey-based study

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...
    Domaćinstva, Individualni sistemi grejanja, Korišćenje energije, Stavovi potrošača, Anketa, Srbija

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... Missoni 2015), but the recon- struction of the depositional environment of radiolarites pro- vides a number of answers for the open questions. The investigations of the resedimented Late Triassic oceanic ribbon radiolarite clasts in the ophiolitic mćlange between Trnava and Rožanstvo result in ...
    ... Depositional environment, age and facies of the Middle Triassic Bulog and Rid formations in the Inncr Dinarides (Zlatibor Mountain, SW Serbia): evidence for the Anisian break-up of the Neotethys Ocean. Neues Janrb. Geol. Palćiontol. 4bh. 269, 291—320. Sugiyama K. 1997: Triassic and Lower Jurassic ...
    ... oceanic basin (Dinaridic Ocean) between the External (Triassic restricted lagoon) and Internal Dinarides (Triassic open lagoon, reef belt and transitional facies) is not possible due to the missing facies transitions from the lagoon to the open marinc environment. b — Middle Jurassic westward directed ...

  • Izveštaj o održanoj međunarodnoj konferenciji “7th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES 2012”

    Bajić Dragoljub, Zarić Jelena, Ristić-Vakanjac Vesna, Polomčić Dušan, Čokorilo Marina (2014)

  • Middle Aptian Orbitolinid limestones in Belgrade (Serbia): microfacies and depositional environment

    Bojana Đorđević, Hans-Jürgen Gawlick, Nevenka Djerić, Felix Schlagintweit, Miloš Radonjić (2023)
    Orbitolinidae, Microfacies, Early Cretaceous, Dinarides

  • Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability

    Marija Živković, Dejan Ivezić (2021)
    Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...
    рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија
    ... heating system reflects on its impact on the environment, as well as on the energy security of supply (import dependency and fuel mix diversification) and the primary energy factor. It is calculated by: where E i,RES[MWh] Energy content of input to the system of the ith renewable energy carrier. Qext ...
    ... for ensuring reliable and affordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import depend- ency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage ...
    ... pumps. The effects on sustainability are assessed through analysis of key performance indicators to provide deeper insight in energy efficiency, energy security, and carbon dioxide emission of district heating systems (primary energy factor, import dependency index, fuel mix diversification and carbon ...

  • Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema

    Svetlana M. Štrbac-Savić (2016-06-10)
    Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...
    podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija
    ... important to emphasize the forecasting acts serve as a basis for further planning. The forecasting process is performed in a specific environment. If we take into consideration the fact that the environment is changed over time then it is obvious that the forecasts and targets are changed as ...
    ... estimation of the company in order to achieve them. Planners try to forecast the behavior of the input variables of production environment and arrive at desirable states. They create their strategies on realistic targets drawn from these forecasts. A forecast is based on past and current production ...
    ... describe environment changes in order to strategically link the forecasting and planning functions, improving the performance of both. Large capital intensive projects, such as those in the mineral resource industry, are often associated with diverse sources of both endogenous and exogenous ...

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... (2013) Depositional environment, age and facies of the Middle Triassic Bulog and Rid formations in the Inner Dinarides (Zlatibor Mountain, SW Serbia): evidence for the Anisian break- up of the Neotethys Ocean. N Jahrb Fir Geol Paliionto! Abh 269(3):291—320 Terezopoulos N (2004) The challenge for ...
    ... (Fig. 1). The area is part of the northern rim of the Maljen ophiolitic massif, located in the Western Belt of the Vardar Zone (Karamata and Krstić 1996; Karamata 2006). The wide territory is characterized by a complex morphology and is distinguished by two areas: the plain of the tertiary basin ...
    ... dark grey and grey in the base of the lithological column, and pink and pinkish-red in the middle, to the intensive red of the highest layers of nodular limestone (Fig. 2a). Preserved shells of various macrofossils (e.g., ammo- nites) further contribute to the aesthetic appearance. The homogencity ...

  • Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases

    Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić (2021)
    Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...
    Šifove baze, Lipofilnost, RP-TLC, Organski modifikatori

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... sustain the environment and reach a net zero carbon future. The analysis of the various aspects and processes of CCUS presents the narrative of how feasible countries and energy players need to invest in climate change and energy sustainability as global warming is on the rise and adapt to the new ...
    ... transfer, fluid friction, and energy dissipation with respect to the surrounding environment. The following equations present the exergy loss in different equipment. The exergy loss in each piece of equipment includes the exergy difference between the inlet and outlet. Here, the power consumed in a pump ...
    ... emissions from the atmosphere to have a sustainable environment and to mitigate global climate crises. Research in this work will provide a comprehensive and detailed information regarding the analysis of carbon capture with its emerging and new technologies with the intricacies and challenges ...

  • Classification of mining waste landfills according to legislation in Serbia

    Dragana Nišić, Uroš Pantelić, Nikoleta Aleksić, Neda Nišić (2021)
    rudarski otpad, jalovina, uredba, deponija, kategorija A, klasifikacija
    ... Alonso, F. Barbosa, M. C. W. Brito, F. V. Laureano, P. May, H. Roeser, and Y. Kakabadse: Impacts of the Fundão https://-ec.europa.eu/-environment/pdf/-wa-ste/mining/mwfs_report_dec_07.pdf https://-ec.europa.eu/-environment/pdf/-wa-ste/mining/mwfs_report_dec_07.pdf https://open.alberta.ca/dataset ...
    ... classify the landfill in the proposed category A. Starting from this issue, this paper explains in detail all the pro- visions of the Bylaw dealing with the terms of classification. It is determined that the landfill is cla- ssified based on the possibility of a potential failure and the character ...
    ... adopting the Bylaw on the conditions and procedure for issuing waste management permits, as well as criteria, characteri- zation, classification and reporting on mining waste in 2017. As the implementation of the Bylaw began in 2020, there are still frequent doubts during the interpretation of the criteria ...

  • Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”

    Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić (2015)
    ... in setting out direction angles and error in setting out lengths of traverse legs. The environment enables the use of total station when setting out the designed mine chambers, i.e. of the mine traverse. When carrying out the a priori accuracy assessment, the standard deviation for setting out ...
    ... equipment and pit truck. The loading and transport of the blasted ore from the stope to the appropriate loading place to the pit truck is real- ized by the LHD machine. The ore is transported by the pit truck through the main haulage adit (GIP) to the surface, and afterwards with the same truck to ...
    ... territory of the municipality Milici – Bosnia and Herzegovina (The Republic of Srpska). The ore reserves of the bauxite deposit of "Podbracan" were excavated till 2010 by using the open pit method of mining at the central and northern part of the deposit up to the +410m. Above this level, in the southern ...

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... directly aff ected by the environment and the weather. 109 Archaeology and Science 10 (2014)Petković et al - Advantages and Disadvantages of a Parallel...(93-110) BIBLIOGRAPHY Burks, J. 2014 Geophysical Survey at Ohio Earthworks: updating Nineteenth Centure Maps and Filling the “Empty” Spaces, ...
    ... amounts of magnetic minerals from the iron oxide and iron sulphide groups, either organic or inorganic in origin, which cause a diff erence in the magnetic susceptibility of archaeological objects and the environment that surrounds them. The best responses to magnetic data are pro- vided by materials ...
    ... north, and the other group with the acquisition to the south. After separating the traverses by the direction of acquisition, the data was interpolated using the linear Kriging method and displayed as a gradient map of TMI, with the direction of the acquisition to the North (Figure 9.a.), and to the ...

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... putevi and puti. The second one is restricted to poetical usage and a user can choose to delete it from the expended query if the working text is not of that kind. Figure 2. The original query keyword glava is shown in the upper left corner. The chosen query expansions are shown on the left ...
    ... enrich our lexical resources, first of all the Prolex database since we plan to use it in a translation environment [14]. It is our wish to work in a future with a true aligned Balkan text – that is, a text originally written in some Balkan language and translated to other Balkan languages. ...
    ... most of the cases identified. In the following example the English segment is given only for the sake of translation. Between Omaha and the Pacific the railway crosses a territory which is still infested by Indians and wild beasts ...

  • Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine

    Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)
    Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...
    raspoloživost, fazi teorija, AHP višekriterijumska analiza, eksperska ocena, buldozer
    ... accordance with the work environment. The result has two dimensions, one is the linguistic description of availability and the other is the intensity of the same. The model can be used as a simple tool in asset management in the sense of machine comparison and weak point analysis [18]. The model will be ...
    ... (work and service environment) coordinates. Partial indicators are reliability, convenience of maintenance from the construction point of view, convenience of maintaining from the logistical point of view, functionality and adaptability, safety (the level of risk to the work and environment). Regardless ...
    ... (structural component), and the level of support. Last mentioned item can be called supportability (S). The goals of supportability engineering are focused on minimizing the cost of ownership [15]. It contains a logistic component of maintainability and impact of the working environment in technical, functional ...

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... emissions, there is still a negative impact on the environment. When assessing this negative impact on the environment, it is important to evaluate RESs from a lifecycle perspective and to consider emissions in the fuel chain and the manufacturing of the energy conversion technology. Indicator ‘‘Lifecycle ...
    ... accomplish the energy goal in the case of Taiwan’s energy sector. The results showed that hydropower, solar energy, and wind energy will contribute to meeting the 3E policy goals (energy, environment, economy). The new fuzzy integrated Delphi-FAHP-PROMETHEE method- ology has been applied (Seddiki and Bennadji ...
    ... efficiency and share of renewables (IRE, 2018). A transition to- wards long-term sustainability in global energy systems based on renewable energy sources (RESs) can simultaneously miti- gate issues such as greenhouse gas emissions, pollution, and the exceeding of critical planetary boundaries (Bogdanov et al ...

  • Electronic Dictionaries - from File System to lemon Based Lexical Database

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić (2018)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    ... dictionary management, and enhance the de- velopment environment from singe-user to multi-user. In addition to that, LeXimir did not offer support for complex constraints that the development of large dictionaries with rich information needs. The format used in LeXimir did not support the establishment of ...
    ... to a multi-user environment based on a re- lational database management system. The new lexical data model implemented as a lexical database has various advan- tages over the previously used file-based system. The intro- duced logical constraints will prevent omission of markers and enable their ...
    ... dictionary management LeXimir, in order to sup- port parallel development for a certain period of time, and to enable smooth transition of development environment. The database contains all currently used markers, but these markers have not a “flat” structure anymore, but rather a hierarchical structure ...